Julia had a baby 3 weeks ago. she has been feeling sad and inadequate as a mother, which has made caring for her newborn difficult. julia may be experiencing:

Maternal depression

Julia may be experiencing maternal depression.

Maternal depression involves series of health conditions that can affect women during pregnancy and until after one year of child birth. Types of maternal depression include; postpartum psychosis, postpartum and prenatal depression. Maternal depression can be caused as a result of hormonal changes, trauma, heredity, and life stresses. Symptoms of depression are; sadness, consistent fatigue, irregular sleeping patterns and feelings of hopelessness.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.